US2878198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-drying oleoresinous coating compositions containing resorcinol-p-alkylphenol-aldehyde resins and a process of preparing these resins
Assignee: Beazer East Inc
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Filing: 1954-06-28
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Granted: 1959-03-17
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Ingram
- 👤 Charles N Irvine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:21
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS OF PRODUCING AN OIL-SOLUBLE RESIN COMPRISING: CONDENSING A P-ALKYLPHENOL WHEREIN THE ALKYL GROUP CONTAINS AT LEAST 4 CARBON ATOMS AND FORMALDEHYDE IN THE PRESENCE OF AN ALKALINE CATALYST AT A TEMPERATURE OF FROM ROOM TEMPERATURE TO REFLUX TEMPERATURE UNTIL SUBSTANTIALLY ALL OF THE FORMALDEHYDE HAS REACTED TO FORM A REACTION MIXTURE CONTAINING A P-ALKYLPHENOL-FORMALDEHYDE CONDENSATION PRODUCT; AND THEREAFTER REACTING RESORCINOL AT A TEMPERATURE OF FROM ABOUT 50*C. TO REFLUX TEMPERATURE WITH SAID REACTION MIXTURE FOR A PERIOD OF TIME SUFFICIENT TO REACT THE RESORCINOL WITH SAID CONDENSATION PRODUCT; SAID RESORCINOL, P-ALKYLPHENYL AND FORMALDEHYDE BEING REACTED IN THE MOLAR RATIO RANGE OF FROM 0.01:0.99:0.50 TO 0.65:0.35:0.85 RESPECTIVELY.
Claim 2
Dependent Claim
108 words
A PROCESS OF PRODUCING AN OIL-SOLUBLE RESIN COMPRISING: CONDENSING A P-ALKYLPHENOL WHEREIN THE ALKYL GROUP CONTAINS AT LEAST 4 CARBON ATOMS AND FORMALDEHYDE IN THE PRESENCE OF AN ALKALINE CATALYST AT A TEMPERATURE OF FROM ROOM TEMPERATURE TO REFLUX TEMPERATURE UNTIL SUBSTANTIALLY ALL OF THE FORMALDEHYDE HAS REACTED TO FORM A REACTION MIXTURE CONTAINING A P-ALKYLPHENOL-FORMALDEHYDE CONDENSATION PRODUCT; AND THEREAFTER REACTING RESORCINOL AT A TEMPERATURE OF FROM ABOUT 50*C. TO REFLUX TEMPERATURE WITH SAID REACTION MIXTURE FOR A PERIOD OF TIME SUFFICIENT TO REACT THE RESORCINOL WITH SAID CONDENSATION PRODUCT; SAID RESORCINOL, P-ALKYLPHENYL AND FORMALDEHYDE BEING REACTED IN THE MOLAR RATIO RANGE OF FROM 0.01:0.99:0.50 TO 0.65:0.35:0.85 RESPECTIVELY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |